Author R.W.W. Greene is back at Gibson's Bookstore with his newest science fiction novel, Earth Retrograde! The United Nations is working to get everyone off Earth by the deadline – set by the planet’s true owners, the aliens known as the First. It’s a task made somewhat easier by a mysterious virus that rendered at least fifty percent of humanity unable to have children. Meanwhile, the USA and the USSR have set their sights on Mars, claiming half a planet each.